Articles

Emily Lakdawalla

The United States Geological Survey recently issued an improved version of the Viking color map of Mars. This 40-year-old data set still provides the prettiest global-scale map of the planet.

Emily Lakdawalla

Check out this unusual crater on Mars. It's not a very big one, less than 500 meters in diameter, and yet it has two rings. Most craters on Mars this size are simple bowl shapes. What's going on here?

ESA Mars Express Team

On Sunday, 19 October 2014, at around 18:30 UTC, comet C/2013 A1 – known widely as 'Siding Spring' after the Australian observatory where it was discovered in January 2013 – will make a close fly-by of Mars.

Larry Crumpler

Opportunity is still exploring an outcrop high up on Murray Ridge as the winter solstice on Mars approaches. At this location the tilts are good, so Opportunity is getting excellent solar input on its solar panels.

Larry Crumpler

Opportunity arrived at the location that has been the target of all this climbing since late last (Earth) summer. We will settle in for some detailed work on the outcrop here since this appears to be something different from the impact breccias that we have been seeing along the ridge crest.

Larry Crumpler

Today is the tenth anniversary of Opportunity's landing on Mars. Here at the New Mexico Museum of Natural History and Science, we just opened a tenth anniversary exhibit.

Bill Dunford

Animated maps of the planets show the spheres in motion.

Lori Fenton

I have a pet peeve: the words dune and ripple are often used interchangeably, although they are quite distinct from one another. So what’s the difference between aeolian dunes and ripples? And why should anybody care?

Emily Lakdawalla

Curiosity has tested a new driving mode -- backwards -- and achieved their longest single-day drive in three months. And they've committed to driving to the spot formerly known as

Emily Lakdawalla

After more than two months of very slow driving due to concern about the wheels and time spent choosing whether to enter

Bill Dunford

Exploring a set of newly named hills on Mars reveals tantalizing clues to the planet's story.

A.J.S. Rayl

In the storied history of the Mars Exploration Rovers (MER) mission, January 2014 will likely be remembered as one of the most memorable months of all.

Jason Davis

The Mars Exploration Family Portrait is expanding to cover the entire solar system! But before we proceed, I'm asking for feedback.

Emily Lakdawalla

A few days ago, Curiosity looked westward after sunset and photographed Earth setting toward the mountainous rim of Gale crater.

Ken Herkenhoff

While continuing to perform regular wheel health assessments, Curiosity took a sharp right turn and headed for Dingo Gap. On sol 533, they performed a

Bill Dunford

Portraits of a planet.

Casey Dreier

The

Emily Lakdawalla

A beautiful Mastcam panorama from sol 528 shows a landscape so much more like Earth than anything we've explored on the Martian surface before.

Emily Lakdawalla

At long last, on sol 526, Curiosity imaged the part of the weather instrument that was damaged during landing, but no obvious damage is visible, to me anyway. On sol 527 they drove even closer to Dingo Gap, with plans to drive onto the dune in the sol 528 drive.

G. Scott Hubbard

The next major mission to Mars will push the technological envelope in way that preserves its budget and fulfills the scientific goals set by the planetary community for this decade.